A British preacher known for previous anti-gay comments has had his Australian visa revoked and has voluntarily left the country. The authorities say it is most likely he won’t be able to return.

Farrokh Sekaleshfar told the Australian Broadcasting Corporation (ABC) he had decided to leave following discussions with the Muslim community. He denied making hate comments about homosexuality during a lecture he hosted at the University of Michigan in 2013.

The incident follows the Orlando attacks where 50 people were killed by Omar Mateen, who later pledged loyalty to Islamic State (IS, formerly ISIS/ISIL), when he opened fire in a popular gay club in Florida. US President Barack Obama called it an act of terror.

Australian Prime Minister Malcolm Turnbull said he would launch an investigation into why Sekaleshfar had not been put on a watchlist beforehand that would have alerted authorities when he initially applied for a visa.

“The moment that this man’s presence and what he had said was drawn to our attention, the minister [Immigration Minister Peter Dutton] and I spoke about it, the minister acted decisively and his visa was revoked,” Turnbull said in an interview with Radio 2GB.